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정석인(Jung Suk-In),김상철(Kim Sang-Chul),김연태(Kim Yun-Tae) 한국철도학회 2004 한국철도학회 학술발표대회논문집 Vol.- No.-
Where the track is continuously welded over a bridge, the longitudinal force is interacted between the track and the sub-structure. Due to this respect, the expansion joint is used to decrease this force. But the expansion joint has several problems related to passenger comfort and maintenance etc. In this study, it is analysed about how the stability of the track is affected as the span length becomes longer in case of 2-span continuos bridge. It is found that there is no problem of an stability unless the span length is longer than 90m when the elastic shoe is used. And several parametric studies were also implemented.